
const customName = document.getElementById('customname');

const american = document.getElementById('american');

const randomize = document.querySelector('.randomize');

const story = document.querySelector('.story');


function randomValueFromArray(array) {
const random = Math.floor(Math.random() * array.length);
return array[random];
}

let storyText = `
今天气温 35 摄氏度，:insertx:出门散步。
当走到:inserty:门前时，突然就:insertz:。
人们都惊呆了，李雷全程目睹但并没有慌，
因为:insertx:是一个 140 公斤的胖子，天气又辣么热。
`;
let insertX = ['怪兽威利', '大老爹', '圣诞老人'];
let insertY = ['肯德基', '迪士尼乐园', '白宫'];
let insertZ = ['自燃了', '在人行道化成了一坨泥', '变成一只鼻涕虫爬走了'];
randomize.addEventListener('click', result);

function result() {
    let newStory = storyText;
    let xItem = randomValueFromArray(insertX);
    let yItem = randomValueFromArray(insertY);
    let zItem = randomValueFromArray(insertZ);
    newStory = newStory.replace(':insertx:', xItem);
    newStory = newStory.replace(':inserty:', yItem);
    newStory = newStory.replace(':insertz:', zItem);
    if (customName.value !== '') {
    const name = customName.value;
    newStory = newStory.replace('李雷', name);
    }
    
    if(american.checked){
        const weight = Math.round(140 * 2.20462) + ' 磅';
        const temperature = Math.round(35 * 9 / 5 + 32) + ' 华氏度';
        newStory = newStory.replace('35 摄氏度', temperature);
        newStory = newStory.replace('140 公斤', weight);
        }
        story.textContent = newStory;
        story.style.visibility = 'visible';
        }